Parasite manipulation of host phenotypes inferred from transcriptional analyses in a trematode‐amphipod system

Molecular Ecology, Journal Year: 2023, Volume and Issue: 32(18), P. 5028 - 5041

Published: Aug. 4, 2023

Abstract Manipulation of host phenotypes by parasites is hypothesized to be an adaptive strategy enhancing parasite transmission across hosts and generations. Characterizing the molecular mechanisms manipulation important advance our understanding host–parasite coevolution. The trematode ( Levinseniella byrdi ) known alter colour behaviour its amphipod Orchestia grillus presumably increasing predation amphipods which enhances through life cycle. We sampled 24 infected uninfected from a salt marsh in Massachusetts perform differential gene expression analysis. In addition, we constructed novel genomic tools for O. including de novo genome transcriptome. discovered that infection results upregulation transcripts associated with pigmentation detection external stimuli, downregulation multiple implicated invertebrate immune responses, such as vacuolar ATPase genes. hypothesize suppression genes altered coloration may allow persist engage further biochemical promotes transmission. transcriptomic analyses reported provide new opportunities discover how diverse pathways underlying phenotypic changes natural populations.

Language: Английский

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Adaptation of a keystone aquatic crustacean to cold temperatures on the Qinghai–Tibetan Plateau

Limnology and Oceanography, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 9, 2024

Abstract Understanding the genomic architecture of temperature adaptation is critical for characterizing and predicting effects changes on natural populations. However, our understanding these mechanisms still limited, especially concerning to a cold climate. Here, we looked adaptive phenotypic features that may help high‐elevation waterflea ( Daphnia sinensis ) clones cope with low temperatures Qinghai–Tibetan Plateau (QTP) explored possible signatures cold. We used an experimental approach compare transcriptional responses, in lowland D. ecotypes from China different (16°C vs . 20°C). ran life table experiments found (from QTP) produced more offspring their 1 st clutch (or over two clutches) than when grown at lower temperature. This temperature‐dependent history difference was associated strong adaptation: gene SLC4A11 (encoding transmembrane protein transporting Na + H ), together its encompassing island, might contribute evolution experienced by clones. noted set candidate genes specific lipid metabolism, cuticle production, cellular proliferation, possibly involved mechanism climate QTP. Our findings advance how organisms have evolved environments.

Language: Английский

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Ecological load and balancing selection in circumboreal barnacles

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2020, Volume and Issue: unknown

Published: July 19, 2020

Abstract Acorn barnacle adults experience environmental heterogeneity at various spatial scales of their circumboreal habitat, raising the question how adaptation to high variability is maintained in face strong juvenile dispersal and mortality. Here we show that 4% genes genome balancing selection across entire range species. Many these harbor mutations 2 million years evolution between Pacific Atlantic oceans. These are involved ion regulation, pain reception, heat tolerance, functions which essential highly variable ecosystems. The data also reveal complex population structure within basins, driven by trans-Arctic interchange last glaciation. Divergence populations high, foreshadowing onset allopatric speciation, suggesting enough maintain functional variation for millions demography.

Language: Английский

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Lack of a genetic cline and temporal genetic stability in an introduced barnacle along the Pacific coast of Japan

PeerJ, Journal Year: 2022, Volume and Issue: 10, P. e14073 - e14073

Published: Sept. 28, 2022

Large numbers of exotic marine species have been introduced worldwide. Monitoring is important to reveal mechanisms underlying their establishment and expansion. Balanus glandula a common intertidal barnacle native the northeastern Pacific. However, this has Japan, South America, Africa, Europe. While latitudinal genetic cline well known in its range, it unclear whether such occurs areas. Twenty years passed since was first identified Japan distribution now ranges from temperate subarctic regions.In present study, we examined genotypes cytochrome oxidase subunit I (COI) mitochondrial (mt)-DNA elongation factor 1a (EF1) across B. at high mid zones.At all sampling sites, northern are abundant did not detect significant effects latitude, tide levels, or interaction on genotypic frequencies. Further, any change genotype composition between data collected during study 2004 samples 2019. Data offer an baseline for future monitoring supply valuable insights into expansion generally.

Language: Английский

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The Genomic Ghosts of Geukensia granosissima

Research Square (Research Square), Journal Year: 2023, Volume and Issue: unknown

Published: Aug. 18, 2023

Abstract Observations that biodiversity - particularly in coastal marine species is redistributing itself as the environment changes has been a key indicator of climate change era. Historical surveys help us identify such patterns taxa might not be typically monitored for distribution or abundance. As recently 1992, southern ribbed mussel Geukensia granosissima was considered to relatively abundant northeastern Florida. Climate velocity predictions suggest these mussels would now have cryptically invaded marshes Georgia, which historically only harbored congener G. demissa , with possible ecosystem consequences. I re-surveyed from both coasts Florida and sites Georgia mitochondrial nuclear genomic diversity. this report, all but gone Atlantic coast Florida, though some signature its history remains data. The reason rapid fluctuation known, important clarification regional biogeographic patterns.

Language: Английский

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The Genomic Ghosts of Geukensia granosissima

Estuaries and Coasts, Journal Year: 2023, Volume and Issue: 47(2), P. 494 - 503

Published: Nov. 13, 2023

Language: Английский

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Peer Review #2 of "Lack of a genetic cline and temporal genetic stability in an introduced barnacle along the Pacific coast of Japan (v0.1)"

Published: Sept. 28, 2022

BackgroundLarge numbers of exotic marine species have been introduced worldwide.Monitoring is important to reveal mechanisms underlying their establishment and expansion.Balanus glandula a common intertidal barnacle native the northeastern Pacific Ocean.However, this has into Japan, South America, Africa, Europe.While latitudinal genetic cline well known in its range, it unclear whether such occurs areas.Twenty years passed since was first identified Japan distribution now ranges from temperate subarctic regions. MethodsIn present study, I examined genotypes cytochrome oxidase subunit (COI) mitochondrial (mt)-DNA across B. at high-and mid-intertidal zones. ResultsAt all sampling sites, northern are abundant did not detect significant effects latitude, tide levels, or interaction on genotypic frequencies.Further, any change genotype composition between data collected during study 2004 samples 2019.Data offer an baseline for future monitoring supply valuable insights expansion generally.

Language: Английский

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Peer Review #1 of "Lack of a genetic cline and temporal genetic stability in an introduced barnacle along the Pacific coast of Japan (v0.1)"

Published: Sept. 28, 2022

BackgroundLarge numbers of exotic marine species have been introduced worldwide.Monitoring is important to reveal mechanisms underlying their establishment and expansion.Balanus glandula a common intertidal barnacle native the northeastern Pacific Ocean.However, this has into Japan, South America, Africa, Europe.While latitudinal genetic cline well known in its range, it unclear whether such occurs areas.Twenty years passed since was first identified Japan distribution now ranges from temperate subarctic regions. MethodsIn present study, I examined genotypes cytochrome oxidase subunit (COI) mitochondrial (mt)-DNA across B. at high-and mid-intertidal zones. ResultsAt all sampling sites, northern are abundant did not detect significant effects latitude, tide levels, or interaction on genotypic frequencies.Further, any change genotype composition between data collected during study 2004 samples 2019.Data offer an baseline for future monitoring supply valuable insights expansion generally.

Language: Английский

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Peer Review #1 of "Lack of a genetic cline and temporal genetic stability in an introduced barnacle along the Pacific coast of Japan (v0.2)"

Published: Sept. 28, 2022

BackgroundLarge numbers of exotic marine species have been introduced worldwide.Monitoring is important to reveal mechanisms underlying their establishment and expansion.Balanus glandula a common intertidal barnacle native the northeastern Pacific Ocean.However, this has into Japan, South America, Africa, Europe.While latitudinal genetic cline well known in its range, it unclear whether such occurs areas.Twenty years passed since was first identified Japan distribution now ranges from temperate subarctic regions. MethodsIn present study, I examined genotypes cytochrome oxidase subunit (COI) mitochondrial (mt)-DNA across B. at high-and mid-intertidal zones. ResultsAt all sampling sites, northern are abundant did not detect significant effects latitude, tide levels, or interaction on genotypic frequencies.Further, any change genotype composition between data collected during study 2004 samples 2019.Data offer an baseline for future monitoring supply valuable insights expansion generally.

Language: Английский

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